Photoluminescence from colour centres generated in lithium fluoride thin films and crystals by extreme-ultraviolet irradiation

2010 ◽  
Vol 268 (19) ◽  
pp. 3035-3039 ◽  
Author(s):  
E. Nichelatti ◽  
S. Almaviva ◽  
F. Bonfigli ◽  
I. Franzini ◽  
R.M. Montereali ◽  
...  
Keyword(s):  
Thin Films ◽  
Ultraviolet Irradiation ◽  
Lithium Fluoride ◽  
Extreme Ultraviolet ◽  
Colour Centres

Multi-angle spectroscopic extreme ultraviolet reflectometry for analysis of thin films and interfaces

2015 ◽  
Vol 12 (3) ◽  
pp. 318-322 ◽  
Author(s):  
Serhiy Danylyuk ◽  
Stefan Herbert ◽  
Peter Loosen ◽  
Rainer Lebert ◽  
Anna Schäfer ◽  
...  
Keyword(s):  
Thin Films ◽  
Extreme Ultraviolet

Control of porosity in fluoride thin films prepared by vapor deposition

2007 ◽  
Vol 22 (7) ◽  
pp. 2012-2016 ◽  
Author(s):  
Hakkwan Kim ◽  
Alexander H. King
Keyword(s):  
Thin Films ◽  
Substrate Temperature ◽  
Vapor Deposition ◽  
Lithium Fluoride ◽  
Quartz Crystal ◽  
Thermal Evaporation ◽  
Magnesium Fluoride ◽  
Crystal Thickness ◽  
Glass Substrates ◽  
Atomic Force

We have measured the porosity in thin films of lithium fluoride (LiF), magnesium fluoride (MgF2), barium fluoride (BaF2), and calcium fluoride (CaF2) as a function of the substrate temperature for films deposited by thermal evaporation onto glass substrates. The amount of porosity in the thin films was measured using an atomic force microscope and a quartz crystal thickness monitor. The porosity was very sensitive to the substrate temperature and decreased as the substrate temperature increased. Consistent behavior was observed among all of the materials in this study.

An electron-diffraction examination of thin films of lithium fluoride and copper prepared by vacuum evaporation

1954 ◽  
Vol 225 (1163) ◽  
pp. 548-563 ◽  
Keyword(s):  
Thin Films ◽  
Surface Tension ◽  
Electron Diffraction ◽  
Lithium Fluoride ◽  
Vacuum Evaporation ◽  
Crystal Axis ◽  
Slight Tendency ◽  
The Individual ◽  
Crystallographic Axes

Thin films of lithium fluoride and copper prepared by vacuum evaporation have been examined by electron diffraction. From accurate measurements of the interplanar spacings, the stresses in the specimens have been determined. Lithium fluoride specimens consist of long cylinders (diameter ~ 100 Å) having their axes perpendicular to the substrate, there being no fixed relation between the axis of a cylinder and the crystallographic axes, apart from a slight tendency for the [100] crystal axis to lie along the axis of the cylinder. A surface tension of the order of —1000 dyn/cm acts over the surface of each crystal. Copper specimens consist of crystallites in the form of disks (diameter ~ 90 Å, thickness ~ 15Å) parallel to (111) planes. Stresses exist in the specimen due to superficial oxidation of the specimen as a whole, not of the individual crystallites.

Bragg-curve imaging of 7 MeV protons in a lithium fluoride crystal by fluorescence microscopy of colour centres

2017 ◽  
Vol 120 (5) ◽  
pp. 56003 ◽  
Author(s):  
E. Nichelatti ◽  
M. Piccinini ◽  
A. Ampollini ◽  
L. Picardi ◽  
C. Ronsivalle ◽  
...  
Keyword(s):  
Fluorescence Microscopy ◽  
Lithium Fluoride ◽  
Colour Centres ◽  
Fluoride Crystal ◽  
Mev Protons
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